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needhelpfastplease
 11 months ago
A student pushes a 40N block across the floor for a distance of 10 m. How much work was applied to move the block?
A.
4 J
B.
40 J
C.
400 J
D.
4000 J
needhelpfastplease
 11 months ago
A student pushes a 40N block across the floor for a distance of 10 m. How much work was applied to move the block? A. 4 J B. 40 J C. 400 J D. 4000 J

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timaashorty
 11 months ago
Best ResponseYou've already chosen the best response.1I'm not 100% sure about this one but I would go with C.

kym02
 11 months ago
Best ResponseYou've already chosen the best response.1I think it's also C because work=force x distance.

theEric
 11 months ago
Best ResponseYou've already chosen the best response.0Right! Because the force and displacement are in the same exact direction, you can use that formula.

needhelpfastplease
 11 months ago
Best ResponseYou've already chosen the best response.1thanks everyone! You all are very helpful!

theEric
 11 months ago
Best ResponseYou've already chosen the best response.0:) You're welcome! More generally, \(\large W=F\dot\ d\dot\ \cos(\theta)\) where \(\theta\) is the angle between force and displacement. You can see that, when they're in the same direction, \(\theta=0\) \(\implies W=F\dot\ d\dot\ \cos(0)=F\dot\ d\dot\ 1=F\dot\ d\)
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